Fridrich K L, Pena-Velasco G, Olson R A
Department of Hospital Dentistry, University of Iowa Hospitals and Clinics, Iowa City 52242.
J Oral Maxillofac Surg. 1992 Jun;50(6):586-9. doi: 10.1016/0278-2391(92)90438-6.
To evaluate current trends in facial trauma, records from 1,067 patients sustaining 1,515 mandibular fractures from 1979 to 1989 were reviewed. The greatest number of fractures occurred between the ages of 20 to 29 years. Sex distribution was approximately three males to one female. Altercations were found to have caused about half of the fractures, and motor vehicle accidents accounted for nearly one-third. Angle fractures were most common, constituting 26.7% of the total. The most common site of mandibular fracture resulting from altercation was the angle (39.1%); condylar, symphysis, and alveolar fractures less commonly resulted from altercations than from motorcycle and automobile accidents.
为评估面部创伤的当前趋势，我们回顾了1979年至1989年间1067例发生1515处下颌骨骨折患者的记录。骨折数量最多的年龄段为20至29岁。性别分布约为男性与女性之比为3比1。发现约一半的骨折由口角争执所致，机动车事故占近三分之一。角部骨折最为常见，占总数的26.7%。因口角争执导致下颌骨骨折最常见的部位是角部（39.1%）；髁突、正中联合和牙槽骨折由口角争执引起的情况比由摩托车和汽车事故引起的情况少见。
